Improvement in cylinders for paper-making machines



R. McMURRAY.

Cylinder fo'r Pape'r-Making Machines.-

N0.164,468, Patentedlunel5,1875.

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THE GRAPH C COJHQ O -UTHQSE4I PARK PLACE,N.Y.

UNITED STATES PATENT OFFICE.

I ROBERT MCMURRAY, OF BROOKLYN, NEW YORK.

IMPROVEMENT lN CYLINDERS FOR PAPER-MAKING MACHINES.

Specification forming part of Letters Patent No. 1 64,468, dated June 15, 1875; application filed December 1, 1874.

To all whom it may concern:

Be it known that I, ROBERT MoMUREAY, of Brooklyn city, Kings county, State of New York, have invented certain Improvements in Adjustable Frames for Wire Cloth Paper- Making Cylinders, of which the following is a specification The object of my improvement is to provide for the stiffening of the present used and required long wire-cloth paper-making cylinders, and preventing them from sagging and getting out of shape. I am Well aware that such cylinders are and have been stiffened by braces attached to the sides of the cylinders, and to an axle placed in the center of the cylinder.

My invention relates to an adjustable frame which can he slid out of and into the cylinders, and cleaned and repaired as required.

My invention consists in constructing a metallic frame, consisting of four or more horizontal bars or rods, which are held certain distances apart by stifiening-braces. I prefer to make these braces in the form of rings, one placed in the interior of the other, perpendicular to each other, and all fastened together; but I do not confine myself to this form of braces.

by removing one of the heads of the cylinders my adjustable stiffening-frame can be removed, aud again inserted, for the purpose of cleaning and repairing.

In order to describe more fully my invention, I refer to the accompanying drawing forming a part of this specification.

Figure I is a longitudinal sectional view of a cylinder and my improved adjustable stiffender.

Having described my invention, I desire to claim- The wire-cloth cylinder A, in combination with the adjustable and removable stiffenin gframe E, substantially as set forth.

ROBERT MGMURRAY.

Witnesses FRANKLIN BARRITT, RICHARD GEENER. 

